Improved wheel for Automower 450X

thingiverse

We love our Automower 450X. It has been doing fantastic work for several years now. However, the wheels have never been great, easily slipping on wet or loose ground and featuring very little tread. We've designed these to replace them and so far, they're working extremely well. They're engineered not to stress or shake the gearboxes too much but please keep in mind that they could increase loading, which will void any warranty (something we wouldn't be too concerned about given how good Husqvarna is with their warranties). The thin wedge centre gives the robot a ridge to run on, ensuring it's smooth until the going gets soft or rough, when the treads start to bite. The blocks are designed not to be too aggressive, so they don't overload anything and give when they should. We've printed these using standard PLA (most likely Ziro as that's what we use most) although there's a good argument for using semi-flex. We didn't like using support but a bit is needed in the middle. Obviously, you'll need a good-sized printer as they're about 250mm diameter. The hub is just to keep the axle nuts clean; it has a small cutout so that you can pry it out with a screwdriver. The H is there just to show if the wheels are turning and to locate the pry cutout. It's also the starting letter of Husqvarna and Hagen Automation, but their copyright is theirs and ours is ours, and this H is neither! We produce lubricants specifically for 3D printers - check out HagenAutomation.com. Silicone oil for rollers can be found here: https://www.amazon.co.uk/Silicone-printers-desktop-robot-arms/dp/B07F7G3QNS PTFE grease for Z axis screws is available here: https://www.amazon.co.uk/printer-industrial-lithium-lubricant-nozzle/dp/B07D5J58TT We are a UK-based company that specialises in industrial robotics and affordable automation solutions.